Three-dimensional state of stress at a point (1,1,2) within a body relative to the coordinate system. Determine the normal and shear stress stresses at a point.

a. Normal stress: σ=√6 MPa, Shear stress: τ=2 MPa
b. Normal stress: σ=2 MPa, Shear stress: τ=√6 MPa
c. Normal stress: σ=√3 MPa, Shear stress: τ=√3 MPa
d. Normal stress: σ=1 MPa, Shear stress: τ=1 MPa